Gaseous-fuel mixer



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Ska/W1 boa 5 21 ms iiecdly B Aug. 16, 1927. U. TELECSKY 1,639,579

GASEOUS FUEL MIXER Filed Oct. 14. 1926 2 Shuts-Shoo. 2

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Patented Aug. 16, 1927.

UNITED STATES 1,639,579 PATENT bFF'ICE,

ones rnLEcsxY, or AKRON, onro.

onerous-roan mxnn.

Appllcation filed October 14, 1928. Serial No. 141,572.

This invention relates to improvements in gaseous fuel mixers forinternal combustion engines, and has more particular reference to adevice'of this kind adapted to be formed integral with or removablymounted in the intake manifold of the engine and so constructed as tocause the fuel to whirl or rotate for thoroughly breaking up and mixingthe air and liquid fuel immedlately prior A more specific object is toprovide a fuel mixer of the above kind embodying a spiral bladed deviceof improved form adapted to be formed or mounted in the intake manifoldof an engine for causing rotation or whirling of the fuel and air toeffect thorough breaking up and mixing ofthe same.

Still another specific object is to provide a mixer of the above kindincluding an at-- taching gasket adapted to be bolted or clamped betweenthe joint flanges of the adjacent ends of an intake manifold and thefuel outlet of an associated carbureter, and simple means for attachmentof the bladed device to the gasket. I Another object is to provide anauxiliary gasketadapted to be employed in connection with the mixingdevice proper forming part of the present invention whereby the lattermay be most effectively employed in connection with the ends ofmanifolds having a straight length less than that of the bladed device.

Other objects will become apparent as the nature of the invention isbetter understood, 7

and the same consists .in the novel form, combination and arrangement ofparts hereinafter more fully described, shown in the accompanyingdrawings and claimed.

In the drawings, wherein like reference characters indicatecorresponding parts throughout the several views,

Figure 1 is a side elevational .view, partly broken away, and in sectionillustrating a mixin device constructed in accordance with t e presentinvention, operatively associated with the intake manifold of aninternal combustion engine;

Figure 1 is an enlarged fragmentary longitudinal sectional view of theintake manifold and carbureter fuel outlet pipe shown in Figure 1,together with the associated fuel mixer;

Figure 2 is an elevationalview of the fuel mixer-shown in Figures 1 and1, removed;

Figure 3 is atop plan view of the device shown in Figure 2;

Figure 4 is a longitudinal fragmentary sectlonal view of the mountinggasket of the fuel mixer shown in Figures 2 and 3, w1th the bladeddevice attached therefrom;

Figure 5 lllustrates, in elevation, one of the plates from which one ofthe blades of the bladed device of the fuel mixer, is formed; 75

Figure 6 is a view of the blade formed from the plate shown in Figure 5;

Figure 7 is a view similar to Figure 5 of the other plate from which theother blade of the bladed device is formed;

Figure 8 is a view similar to Figure 6 of the other blade of the bladeddevice which is formed from the plate shown in Figure 7 Figure 9 is abottom plan View of an auxiliary gasket employed in connection with themixing device of Figure 2 when the latter is used in connection with amanifold gaving a relatively short straight end por- Figure 10 is aninverted longitudinal section of the device shown in Figure 9 takensubstantially upon line 10-10 of the latter figure; v

Figure 11 is a View similar to Figure 1 showing the manner of employingthe device of Figures 9 and 10 in connection. with the mixer of Figure 2in a manifold having a relatively short straight end; and j:

Figure 12 is a fragmentary longitudinal sectional view' of an intakemanifold formed 1 with an integral fuel mixer in accordance with thepresent invention.

7 Referring more in detail to the drawings, the present inventionpreferably embodies a spiral bladed device generallyindicated at 105 5,adapted to be substantially fitted and rigidly secured within an intakemanifold 6 of an internal combustion engine 7 so as to cause rotation orwhirling of the liquid fuel and air supplied to the manifold from the110 Elli conventional c'arbureter 8, whereby the iiuel and air areefi'ectively broken'up and mixed prior to admission into the cylindersof the engine.

The bladed device 5 consists of a pair of crossed and inter-fittedspirally twisted blades 9 and 10 respectively formed from elongatedrectangular plates 9 and 10* that are respectively longitudinallyslotted for substantially one-half their respective length from oppositeends as at-ll and 12, whereby the blades may be properly interfitted incrossed relation and secured together b soldering or the like with theirends fins 1 at the opposite ends of the bladed device thus produced. lltwill thus be seen that when the bladed device 5 is rigidly mounted inthe intake manifold 6 as illustrated in Figures 1 and 1 the upwardlyflowing liquid fuel and air will be given a rotating or whirling motionso as to be effectively broken u and commingled or mixed for ready ancomplete consumption when subsequently admitted to the cylinders of theengine 7.

Means is provided for rigidly mounting the bladed device 5 in the intakemanifold 6,

and this means preferably embodies a centrally apertured metallic baseplate or gasket 13 to which is attached the lower end of the bladeddevice 5 so that the latter is in line with the central opening 1d ofthe gasket 13 as shown. The gasket 13 is adapted to be firmly bolted orclamped between the adjacent end or joint flanges 15 of the manifold 6and the fuel outlet pipe 16 of the carbureter 8 that are securedtogether by bolts 17 in the usual manner, which bolts are adapted toalso pass through the end openings 18 of the gasket 13. When the gasket13 is formed of relatively stifl and hard metal, it may be necessary tointerpose the same between a pair of conventional sealing gaskets asshown at 19 in Figure 1 to avoid leakage at the joint.

The mounting gasket 13 is preferably stamped from sheet metal so as toprovide the same with pairs of opposed equally spaced ears 20 thatextend inwardly of the opening 14: and these ears 20 are twisted atright angles and directed upwardly or laterally of the gasket 13 asshown in the several views. As illustrated more clearly in Figures 2 and3, the lower corner portions of the blades 9 and 10 flatly contact thesides of the ears 20 and are aperturedas at 21 for being rigidlyfastened to said ears as by riveting or the like indicated at 22. Thisprovides a simple and durable construction which may be cheaply andeasily manufactured and which permits ready and expeditious assemblingand fastening of the parts together. Moreover, when the blades areattached to the mounting gasket 13 in this manner the blades need notnecessarily be teaserswith a manifold having a relatively short straight*end. an auxiliary gasket 23 is employed above the mounting gasket 13and between the meeting joined ends of the manitold 6 and the carbureterfuel outlet pipe 16, the gasket 23 being illustrated in Figures 9 and10, and the manner of employing the same in connection with the mixerbeing illustrated in Figure 11. As shown the gasket 23 is relativelythick and preferably is formed of suitable cast metal so as to have arelatively long central tapered opening 2a to facilitate insertion ofthe bladed device therein. As shown in Figure 11, the manifold 6 has anend which is shorter than the bladed device 5 and from this end the manifold curves or bends abruptly. It is thus apparent that the mixer couldnot be used under these conditions with the parts clamped together as inFigure 1 and in order to. increase the efiective length of the end ofthe manifold so that the mixing device may be used under suchcircumstances, the gasket 23 is employed above the mounting gasket 13with the bladed device 5 extending therethrough and only an end portionof the bladed device projecting into the manifold.

While the bladed device has been shown as having its lower end attachedto the gas- 7 ket 13, it is nevertheless to be understood that this isnot essential. For instance, the bladed device being small enough toenter the opening 14, may be attached at any ,pointbetween its ends tothe ears 20 by simply changing the location of openings 21 accordingly.Naturally, in such case, the bladed device would project above and belowthe gasket 13. While the gaskets 13 and 3 have been shown in Figure 11as emloyed without the usual sealing gaskets 19, it will nevertheless beunderstood that such sealing gaskets may also be employed if foundnecessary or desirable, in this use of the invention. I

From the foregoing description it is believed that the construction andoperation as well as the advantages of the present invention will bereadily understood and appreciated'by those skilled in the art.

Minor changes may be made without departing from the spirit and scope ofthe invention as claimed.

The form of the invention shown in Fig. 12 embodies a pair ofintegrally. formed inter-twining splral blades 9 and 10 cast integralwith and internally of the intake manifold 6 outermost points of theblades joining with the manifold as indicated at 25.

What I claim as new is A fuel mixer for internal combustion enginescomprising a spiral bladed device adapted to be introduced into theintake manifold of the engine, and a mounting gasket adapted to befirmly clamped between the joint flanges of an end of the manifold andan adjacent end of a carbureter outlet pipe, said gasket having acentral fuel passage opening, said bladed device being ri idly attachedto the gasket in line with said fuel passage opening of the latter,pairsof opposed equally spaced ears projecting inwardly of the opening ofsaid gasket, said bladed device comprising a pa1r of cross spirallytwisted blade plates having adjacent corner portions flatly contactingthe sides of and secured to said ears, said blade plates being ofelongated rectangular form before being twisted and having longitudinalslots respectively extending from opposite ends thereof to substantiallymidway the lengths thereof, whereby the adjacent ends of the blades aresubstantially flush when the blades are interfitted and arranged incrossed relation.

In testimony whereof I aflix my signature.

UROS TELECSKY.

